The conventional progressive wisdom is that the Trump Administration will be bad for cities and for transit users. But in recent decades, a unified Republican government has been better for public transit than a divided government.

An efficient and equitable transport system must be diverse to serve diverse travel demands. Planners need better tools to quantify and communicate the benefits of walking, cycling and public transit to sometimes skeptical decision makers.

Global Warming

A preview of the next major United Nations climate change report is taking a stronger stance on the role of humans in causing global warming and predicting a possible sea level rise that would endanger cities such as London, New York, and Shanghai.

Four former EPA heads in Republican administrations, from Richard Nixon to George W. Bush, have penned an op-ed in The Times calling on members of all parties to support President Obama's recent climate initiatives and do more to curtail warming.

On a recent trip to Portland, land use attorney Bill Adams couldn't help but make comparisons to redevelopment efforts elsewhere. He found 7 tangible areas in which Portland shines through its copious clouds.

Despite record levels of greenhouse gas emissions, global surface temperatures have risen at a much slower rate over the past 15 years than the 20 years prior. Scientists are struggling to explain a warming plateau.

A new report from the International Energy Agency has some sobering news about the planet's record setting carbon emissions. But it also identifies four policy recommendations that could help stave off warming in excess of the dreaded 2°C mark.

Graphs and maps can be compelling means to illustrate the dire threat to our cities of rising seas caused by climate change. But for blunt impact, a series of photo illustrations by artist Nickolay Lamm are hard to beat.

It may be hard to remember now that the winter weather has many dreaming of an escape to a warm beach, but last year's scorching temperatures set the record for the hottest year ever in the United States - by far.

Reflecting on the significance and impact of Superstorm Sandy, Bill McKibben and Lawrence J. Hanley propose a 3-step process focused on mass transit that America should pursue to promote community development, public health and the environment.

In an astonishing interactive graphic and accompanying opinion piece, Benjamin Strauss and Roberr Kopp outline several likely scenarios for the impact of rising seas on America's urban areas. New Orleans and Miami Beach could be completely submerged.

Howard Schneider examines a recent study by the World Bank, issued as a call-to-action for the international community not merely to curb, but to plan for and mitigate the crises that a 4°C rise in global temperatures would bring.

Despite the seemingly positive news outlined in a new report detailing the role global warming periods play in increasing biodiversity, today's extremely-rapid warming trajectory may cancel out any hope of that.

Planning: A professional practice and an academic study focused on the future of built environments and connected natural environments—from the smallest towns to the largest cities and everything in between.

Planetizen: The independent resource for people passionate about planning and related fields.